Ryan North

Conveniently available for free PDF download. A compelling idea, here -- a machine is invented which can from a blood sample predict accurately how you'll die, but does so ambiguously, so that OLD AGE might mean you getting old or you being stabbed by an old guy -- which was then riffed on by a whole bunch of people who wrote short stories. The best are collected here. Some names that are known -- Yahtzee Croshaw, Randall Munroe -- and a few good stories in here, but overall the quality is pretty patchy. Still, you can get it for free, so go get it for the good ones.